Electric annunciator and signaling system.



P. c. GRAHAM. I ELECTRIC ANNUNCIATOR AND SIGNALING SYSTEM.

` APPLICATION FILED JUNE 14, 1911. 1,038, 1 1 '7. Patented sept. 10, 1912.

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F. C. GRAHAM. ELECTRIC ANNUNGIATOR AND SIGNALING SYSTEM. APPLICATION FILED JUNE 14, 1911.

1,038, 1 17, Peteetee sept. to, 191.2.v

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F. C. GRAHAM. ELECTRIC ANNUNCIATOR AND SIGNALING SYSTEM.

` APPLICATION FILED JUNB14, 1911. 1,038, 1 17, Patented Sept. 10, 1912.

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UNITED STATES PATENT FFICE.

:FREDERICKl c. GRAHAM, or NRW YORK, N. Y.

ELECTRIC .ANNUNCIATOR AND SIGNALING SYSTEM.

To all whom it may concern:

Be it known that I, FREDERICK C. GRA- ifinu, a citizen of the United St-ates, residing at New York city, county of New York, and State of New York, have invented certain new and useful Improvements in Electric Annunciators and Signaling Systems, of which the following is a specification.

My invention relates to electi'ic annunciators and signaling systems. f

The present invention has for its object the provision of a novel electric annunciator of the Hash type and a novel system, all especially adapted for use in connection with elevators, apartment houses and hotels, although not restricted to such uses.

The present invent-ion eliminates much of the complication of electric Hash signaling systems heretofore used, doing away with master machines, separate devices att-ached to overhead sheaves when used on an elevator car when used in that connection, much of the wiring and in so far as the annunciator itself is concerned, it provides but one light for all indications.

The present invention is adapted for use in various connections, as a signaling system and an annunciator and contemplates the provision of an annunciator using a sinle light for all of the Hash openings, solenoids arranged in pairs for each Hash opening and adapted to coperate with the shutters in a novel manner, and in respect to the system, novel circuit arrangements, whereby a return call signal may be utilized at the push but-ton, if desired.

In the accompanying drawings z-Figurcs 1, 2 and 3 are detail views of the Hash signal annunciator, wherever used, as shown in front, side and plan views, certain parts being removed and broken away; Figs. 4, 5 and 6, plan, front and ends views of return call Hash annunciator, wherever used, parts being removed and broken away; Fig. 7, detail views of the shutter and solenoid cores as used for a given induction on the annunciators of Figs. l, 2, 3, 4, 5 and 3; Figs. 8 and 9, detail views of amodified shutter and solenoid construction for an annunciator, enabling the parts to be arranged very compactly; Fig. 10, a diagram of the connections for a complete elevator signaling system; Fig. 11, a diagram of the connections for the return call annunciator of Figs. 4, 5 and 6; and Fig. 12, a similar Specification of Letters Patent.

Application filed .Tune 14, 1911.

Patented Sept. 10, 1912.

Serial No. 633,188.

diagram showing how the shutter may be thrown back by a single solenoid and susceptible of being reset to blanket the Hash opening by hand.

Referring Hrst to Figs. 1, 2 and 3, indicating the annunciator as used in any connection, the case 1 contains one or more vei'- tically arranged rows of Hash openings 2. lithin the case is a single elongated electric incandescent lamp 3 which serves to Hash the. light through any of the openings 2 which may be uncovered, thus distinguishing from Hash annunciators heretofore employed which use a separate incandescent lamp for each of the Hash openings 2. vWhen any one of the openings 2 is uncovered, the light is displayed therethrough. This annunciator has suitable frames 4 having horizontal parts 5 which support the pairs of solenoids 6 and 7, a pair being used in connection with each Hash opening 2. The shutter and armature arrangement is as shown in Fig. 7, where a shutter 8 of suitable construction and size to cover one of the openings 2 is provided with a central armature or core 9 and with a connecting arm or rod 10 secured to a head 11 which is provided with a core or armature 12. The core or armature 9 is received within the solenoid 7 and the core or armature 12 within the solenoid 6. Vhen the circuit of the solenoid 7 is closed, the armature 9 is drawn thereinto, thus uncovering the opening 2 through which the light Hashes from the lamp 3. When the circuit of solenoid 6 is closed. the armat-ure 12 is drawn thereinto and the shutter 8 is made to cover the opening 2. The annunciator is provided with a bell 13 which is included in the circuit so that when any number is displayed, the bell rings, as usual.

In the return call annunciator shown in Figs. 4, 5 and 6, the arrangement is substantially that set forth, but the lamp 3a is provided with a reHector 14 which, however, may be used on the lamp 8. A bell 13a is used in this form of the annunciator. The arrangement of the parts is shown as horizontal which, however, is not essential.

In the construction shown in Figs. S and 9, the pairs of solenoids 6 and 7 are arranged in tandem, four sets of coils for as many Hash openings 2 being carried by a single spider 7 X. The core 9aM runs entirely through each pair of solenoids and the magnet or iron part 'thereof i'siso arranged that'itwill be sucked into one or the other of said solenoids according to energization thereof.

Referring to Fi 10, when the button 17 is pressed, the so enoid `7 is energized by the current from batter or generator 25, whereupon the shutter 8l 1s retractedpand the light" is 'dashed throirgh the' given o enin' 2 according to the point from which t e ca comes. Similarly, 1f the button 18 is pressed, the coil 7 is energized. Whichever shutter is withdruwn,when the lever 22 is moved, the circuit embracing the solenoid 6 is energized by a contact 23 and said solenoid closesthe shutter and .blankets the light.

Referring to Fig. 11, when the button 26 is pressed, .the solenoid 7 is energized and the signalA displayed. When the solenoid 6 is energized to blanket the si nal, "the belly 13* rings at the place where t e button 26 was ressed, indicating that the call has been note In the diagram shown in Fig. 12, the call btton' controls the circuit of a solenoid 7'l which iincovers t-he Hush openin by contraction of armature 7b carrying s utter 7C. When this constructionV is used, the annunciator has to be reset by hand.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

Inan annuncator, the combination with Hash openings, of a pair of solenoids for `each fiash opening, connected cores for snid solenoids, said cores entering opposite ends of the respective solenoids, and a shutter curried by and movable with said cores adepted for covering or uncovering the flash opening controlled by a given air of solenoids. n testimony whereof, I ereunto nix my signature in presence oftwo witnesses.

FREDERICK C. GRAHAM.

Witnesses:

H. C. TUxBUBY, F. T. ONmLL.

, Copies o! this patent may be obtained for've'oentl each, by'oddresstng the "Commissioner of Patents,

Washington, D. 0. 

